An engine enclosure for containing a gas turbine engine is provided. An exemplary engine enclosure includes features that improve noise and thermal attenuation, reduce the weight of the enclosure, and provide for more accessible access points to the interior volume of the engine enclosure.

An engine enclosure for containing a gas turbine engine is provided. An exemplary engine enclosure includes features that improve noise and thermal attenuation, reduce the weight of the enclosure, and provide for more accessible access points to the interior volume of the engine enclosure.

A stern drive is for propelling a marine vessel in water. The stern drive has an upper drive unit with a lower mounting surface; a lower gearcase coupled to the lower mounting surface and a trailing end surface that is angled relative to the lower mounting surface; and a propeller shaft extending forwardly from the lower gearcase and being configured to rotate a propeller for pulling the marine vessel in the water. The upper drive unit and the lower gearcase are configured such that when a forward side of the lower gearcase impacts an underwater obstruction, the lower gearcase is caused to pivot relative to the upper drive unit until the trailing end surface impacts the lower mounting surface, which thereby causes the lower gearcase to completely uncouple from the upper drive unit.

Propulsion system for assistance when paddling in surfing; comprising a propellant device (1), hydro jet type, intended to be mounted on a surfboard (T); and a control device (2) in the manner of a bracelet or bracelet suitable for its attachment on a users arm. The control device (2) comprises: a microprocessor (21), a supply battery (22), sensors (23) that provide the microprocessor (21) with suitable data to identify the users rowing action, calculating the speed and intensity of paddling and generating a control signal proportional to the paddling intensity of the user and; a wireless communication means (24) that transmits the control signal to the propelling device (1); and wherein said propelling device (1) varies the propulsion power as a function of the signals received from the control device (2).

The present disclosure provides a modularized surfing apparatus. The modularized surfing apparatus includes: a surfboard, a battery module configured to store and output electric energy, and a propelling module configured to supply a propelling force; wherein the battery module and the propelling module are respectively detachably connected to the surfboard, and the battery module is electrically connected to the propelling module. In the present disclosure, when a fault occurs, only the battery module or the propelling module needs to be disassembled and repaired, and there is no need to repair the large-sized surfboard, which greatly facilitates transportation and repair. Meanwhile, during manufacture and installation, the manufacture and installation efficiency is also improved.

A watercraft propulsion system operably coupled to a watercraft wherein the propulsion system includes a housing assembly having a first housing and a second housing movable with respect to each other so as to provide an operational mode and a standby mode. The first housing includes at least one aperture that is configured to provide access to the interior volume of the first housing. The second housing includes at least one aperture configured to provide access to the interior volume of the second housing. In the operational mode the first housing and second housing are positioned so as to facilitate alignment of the at least one apertures formed therein. In the standby mode the first housing and second housing are positioned so as to provide an offset of the least one apertures. The first housing is movably mounted within the interior volume of the second housing.

A device for holding a motor and a propeller includes a body operable to hold a motor that, when coupled to a propeller and a power source, is operable to rotate the propeller. The device also includes a mount operable to releasably fasten the body to a personal-sized watercraft. With the mount, the device (and thus the motor and propeller that the device holds) may be releasably fastened to any personal-sized watercraft, such as a kayak, a surfboard, an inflatable paddleboard, and a non-inflatable paddleboard. The body includes a cavity configured to receive the motor such that, when the motor is disposed in the cavity, the body holds the motor. The body also includes a conduit configured to hold a power cable that, when coupled to the motor and the power source, provides power from a power source to the motor.

A personal watercraft body comprises a recess configured to receive similarly shaped cassettes. A first cassette may be motorized to propel the body relative to a body of water. A second cassette may be non-motorized and may include a storage space therein for storing personal items. An insert may be disposed between the cassettes and the recess to orient and fit the cassettes within the body.

Provided is a pod propulsion system including first and second counter rotating propellers for propelling a marine vessel first and second propeller modules, each including an electric motor having a driving-end configured to rotate the first and second propellers, respectively. Also included are first and second gondolas, each (i) for housing a respective one of the first and second electric motors and (ii) including a boltable interface formed along a lengthwise direction of an extremity of the gondola. A strut (i) connects the first and second gondolas to a hull of the marine vessel (ii) including first and second boltable interfaces. Each of the boltable interfaces of the strut is configured to form a bolted joint interface with a corresponding one of boltable interfaces of the first and second gondolas.

A stern drive is for propelling a marine vessel in water. The stern drive has an upper drive unit with a lower mounting surface; a lower gearcase coupled to the lower mounting surface and a trailing end surface that is angled relative to the lower mounting surface; and a propeller shaft extending forwardly from the lower gearcase and being configured to rotate a propeller for pulling the marine vessel in the water. The upper drive unit and the lower gearcase are configured such that when a forward side of the lower gearcase impacts an underwater obstruction, the lower gearcase is caused to pivot relative to the upper drive unit until the trailing end surface impacts the lower mounting surface, which thereby causes the lower gearcase to completely uncouple from the upper drive unit.